Callahan Surname Meaning & Coat of Arms

If your family name is Callahan, its origin lies with Callaghan, a long-established Irish surname.

Callahan is listed among the recognised spellings of Callaghan. Regional accents shaped spellings long before dictionaries fixed them.

Looking for a Callahan coat of arms? Arms were granted to families, not to surnames, and our research shows which heraldic tradition fits yours. Research your Callahan family history with a full surname report and painted coat of arms.